EP3298641B1 - Module de batterie au lithium-ion comprenant des éléments de réception de dilatation et procédé de fabrication comprenant un thermoscellage de couvercle à base de boîtier - Google Patents

Module de batterie au lithium-ion comprenant des éléments de réception de dilatation et procédé de fabrication comprenant un thermoscellage de couvercle à base de boîtier Download PDF

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Publication number
EP3298641B1
EP3298641B1 EP16709619.7A EP16709619A EP3298641B1 EP 3298641 B1 EP3298641 B1 EP 3298641B1 EP 16709619 A EP16709619 A EP 16709619A EP 3298641 B1 EP3298641 B1 EP 3298641B1
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EP
European Patent Office
Prior art keywords
cover
battery module
base
electrochemical cells
housing
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EP16709619.7A
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German (de)
English (en)
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EP3298641A1 (fr
Inventor
Robert J. Mack
Richard M. DEKEUSTER
Jennifer L. CZARNECKI
Jonathan P. Lobert
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CPS Technology Holdings LLC
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CPS Technology Holdings LLC
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/229—Composite material consisting of a mixture of organic and inorganic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/276—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/28—Composite material consisting of a mixture of organic and inorganic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present disclosure relates generally to the field of batteries and battery modules. More specifically, the present disclosure relates to a system and method for sealing a housing and a cover of a lithium-ion (Li-ion) battery module.
  • Li-ion lithium-ion
  • xEV A vehicle that uses one or more battery systems for providing all or a portion of the motive power for the vehicle can be referred to as an xEV, where the term "xEV” is defined herein to include all of the following vehicles, or any variations or combinations thereof, that use electric power for all or a portion of their vehicular motive force.
  • xEVs include electric vehicles (EVs) that utilize electric power for all motive force.
  • EVs electric vehicles
  • hybrid electric vehicles (HEVs) also considered xEVs, combine an internal combustion engine propulsion system and a battery-powered electric propulsion system, such as 48 Volt (V) or 130V systems.
  • the term HEV may include any variation of a hybrid electric vehicle.
  • full hybrid systems may provide motive and other electrical power to the vehicle using one or more electric motors, using only an internal combustion engine, or using both.
  • mild hybrid systems MHEVs
  • MHEVs disable the internal combustion engine when the vehicle is idling and utilize a battery system to continue powering the air conditioning unit, radio, or other electronics, as well as to restart the engine when propulsion is desired.
  • the mild hybrid system may also apply some level of power assist, during acceleration for example, to supplement the internal combustion engine.
  • Mild hybrids are typically 96V to 130V and recover braking energy through a belt or crank integrated starter generator.
  • a micro-hybrid electric vehicle also uses a "Stop-Start" system similar to the mild hybrids, but the micro-hybrid systems of a mHEV may or may not supply power assist to the internal combustion engine and operates at a voltage below 60V.
  • mHEVs typically do not technically use electric power provided directly to the crankshaft or transmission for any portion of the motive three of the vehicle, but an mHEV may still be considered as an xEV since it does use electric power to supplement a vehicle's power needs when the vehicle is idling with internal combustion engine disabled and recovers braking energy through an integrated starter generator.
  • a plug-in electric vehicle is any vehicle that can be charged from an external source of electricity, such as wall sockets, and the energy stored in the rechargeable battery packs drives or contributes to drive the wheels.
  • PEVs are a subcategory of EVs that include all-electric or battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), and electric vehicle conversions of hybrid electric vehicles and conventional internal combustion engine vehicles.
  • xEVs as described above may provide a number of advantages as compared to more traditional gas-powered vehicles using only internal combustion engines and traditional electrical systems, which are typically 12V systems powered by a lead acid battery.
  • xEVs may produce fewer undesirable emission products and may exhibit greater fuel efficiency as compared to traditional internal combustion vehicles and, in some cases, such xEVs may eliminate the use of gasoline entirely, as is the case of certain types of EVs or PEVs.
  • Li-ion battery modules may include Li-ion electrochemical cells disposed in a housing.
  • housings of Li-ion battery modules are metal or include a substantial amount of metal because metal is more resilient to forces exerted against the housing via thermal expansion of the Li-ion electrochemical cells caused by the internal chemistry of the Li-ion electrochemical cells.
  • metal is expensive, and coupling techniques and mechanisms for coupling a cover of the metal housing to a base of the metal housing is also expensive.
  • WO2013164932 and US20140014420 disclose a battery apparatus comprising expansion accommodating elements between cells.
  • US2005238955 discloses a method of welding a plastic cover to a plastic casing body of a lead-acid battery.
  • the present disclosure relates to a battery module having lithium-ion (Li-ion) electrochemical cells disposed in a row and expansion accommodating elements.
  • Each expansion accommodating element is configured to accommodate swelling of one or more Li-ion electrochemical cell such that a footprint of the row of Li-ion electrochemical cells is substantially constant during operation of the battery module.
  • the battery module also includes a plastic housing having a main body configured to receive the Li-ion electrochemical cells, and a cover heat sealed to a surface of the main body.
  • the present disclosure also relates to a battery module having a plastic housing.
  • the plastic housing includes a base and a cover coupled to the base, where the base contains lithium-ion (Li-ion) electrochemical cells, the cover includes a skirt extending downwardly toward the base of the plastic housing and around a first perimeter of the cover, the base of the plastic housing includes a lip extending upwardly toward the cover and around a second perimeter of the base, and the lip of the base is heat sealed to an inner surface of the cover disposed inwards from the skirt of the cover such that the skirt of the cover and the lip of the base overlap along a height of the battery module.
  • Li-ion lithium-ion
  • the present disclosure also relates to a method of manufacturing a battery module.
  • the method includes disposing lithium-ion (Li-ion) electrochemical cells into a base of a housing of the battery module, disposing separator plates into the base such that the separator plates and the Li-ion electrochemical cells are disposed in a row having an alternating arrangement of Li-ion electrochemical cells and separator plates, where the separator plates are configured to enable thermal expansion of the Li-ion electrochemical cells while maintaining a footprint of the row, disposing a cover of the housing over the base of the housing, and heat sealing the cover to the base with the Li-ion electrochemical cells in the base.
  • Li-ion lithium-ion
  • the battery systems described herein may be used to provide power to various types of electric vehicles (xEVs) and other high voltage energy storage/expending applications (e.g., electrical grid power storage systems).
  • Such battery systems may include one or more battery modules, each battery module having a number of battery cells (e.g., Lithium-ion (Li-ion) electrochemical cells) arranged to provide particular voltages and/or currents useful to power, for example, one or more components of an xEV.
  • battery modules in accordance with present embodiments may be incorporated with or provide power to stationary power systems (e.g., non-automotive systems).
  • the battery module may include a group of electrically interconnected electrochemical cells (e.g., prismatic lithium-ion [Li-ion] electrochemical cells) disposed in a housing (e.g., a plastic housing) of the battery module,
  • the housing may include a main body or a base configured to receive the electrochemical cells, and a cover configured to seal against a surface of the main body to enclose the electrochemical cells within the housing.
  • the cover may be heat sealed against a lip of the main body of the housing, which may be cheaper and/or more robust than other coupling techniques and mechanisms (e.g., such as fasteners or adhesive).
  • the housing e.g., the main body and the cover
  • expansion accommodating features may be included in present embodiments of the battery module to block or resist swelling (e.g., expanding) of the electrochemical cells into the housing.
  • some types of electrochemical cells may expand into the plastic housing, thereby causing components of the plastic housing (e.g., the main body of the housing and the cover of the housing heat sealed to the main body) to pull away from each other and/or deform during operation of the battery module.
  • the housing is made substantially of plastic (e.g., without metal)
  • the housing may be susceptible to deformation or undesired disassembly in the presence of forces exerted against the housing by thermally expanding Li-ion electrochemical cells.
  • the expansion accommodating features of the battery module may enable certain Li-ion electrochemical cells to swell without the cells exerting substantial forces against the plastic housing.
  • the expansion accommodating features enable use of a plastic housing (e.g., an all-plastic housing) to reduce a cost of the battery module, while accommodating expansion of the Li-ion electrochemical cells during operation of the battery module.
  • FIG. 1 is a perspective view of an embodiment of a vehicle 10, which may utilize a regenerative braking system.
  • vehicle 10 which may utilize a regenerative braking system.
  • FIG. 1 is a perspective view of an embodiment of a vehicle 10, which may utilize a regenerative braking system.
  • the battery system 12 may be placed in a location in the vehicle 10 that would have housed a traditional battery system.
  • the vehicle 10 may include the battery system 12 positioned similarly to a lead-acid battery of a typical combustion-engine vehicle (e.g., under the hood of the vehicle 10).
  • the battery system 12 may be positioned to facilitate managing temperature of the battery system 12. For example, in some embodiments, positioning a battery system 12 under the hood of the vehicle 10 may enable an air duct to channel airflow over the battery system 12 and cool the battery system 12.
  • the battery system 12 includes an energy storage component 13 coupled to an ignition system 14, an alternator 15, a vehicle console 16, and optionally to an electric motor 17.
  • the energy storage component 13 may capture/store electrical energy generated in the vehicle 10 and output electrical energy to power electrical devices in the vehicle 10.
  • the battery system 12 may supply power to components of the vehicle's electrical system, which may include radiator cooling fans, climate control systems, electric power steering systems, active suspension systems, auto park systems, electric oil pumps, electric super/turbochargers, electric water pumps, heated windscreen/defrosters, window lift motors, vanity lights, tire pressure monitoring systems, sunroof motor controls, power seats, alarm systems, infotainment systems, navigation features, lane departure warning systems, electric parking brakes, external lights, or any combination thereof.
  • the energy storage component 13 supplies power to the vehicle console 16 and the ignition system 14, which may be used to start (e.g., crank) the internal combustion engine 18.
  • the energy storage component 13 may capture electrical energy generated by the alternator 15 and/or the electric motor 17.
  • the alternator 15 may generate electrical energy while the internal combustion engine 18 is running. More specifically, the alternator 15 may convert the mechanical energy produced by the rotation of the internal combustion engine 18 into electrical energy. Additionally or alternatively, when the vehicle 10 includes an electric motor 17, the electric motor 17 may generate electrical energy by converting mechanical energy produced by the movement of the vehicle 10 (e.g., rotation of the wheels) into electrical energy.
  • the energy storage component 13 may capture electrical energy generated by the alternator 15 and/or the electric motor 17 during regenerative braking.
  • the alternator 15 and/or the electric motor 17 are generally referred to herein as a regenerative braking system.
  • the energy storage component 13 may be electrically coupled to the vehicle's electric system via a bus 19.
  • the bus 19 may enable the energy storage component 13 to receive electrical energy generated by the alternator 15 and/or the electric motor 17. Additionally, the bus 19 may enable the energy storage component 13 to output electrical energy to the ignition system 14 and/or the vehicle console 16. Accordingly, when a 12 volt battery system 12 is used, the bus 19 may carry electrical power typically between 8-18 volts.
  • the energy storage component 13 may include multiple battery modules.
  • the energy storage component 13 includes a lithium ion (e.g., a first) battery module 20 in accordance with embodiments of the present disclosure (e.g., having a plastic housing) and a lead-acid (e.g., a second) battery module 22, which each includes one or more battery cells.
  • the energy storage component 13 may include any number of battery modules.
  • the lithium ion battery module 20 and lead-acid battery module 22 are depicted adjacent to one another, they may be positioned in different areas around the vehicle.
  • the lead-acid battery module 22 may be positioned in or about the interior of the vehicle 10 while the lithium ion battery module 20 may be positioned under the hood of the vehicle 10.
  • the energy storage component 13 may include multiple battery modules to utilize multiple different battery chemistries. For example, when the lithium ion battery module 20 is used, performance of the battery system 12 may be improved since the lithium ion battery chemistry generally has a higher coulombic efficiency and/or a higher power charge acceptance rate (e.g., higher maximum charge current or charge voltage) than the lead-acid battery chemistry. As such, the capture, storage, and/or distribution efficiency of the battery system 12 may be improved.
  • the battery system 12 may additionally include a control module 24. More specifically, the control module 24 may control operations of components in the battery system 12, such as relays (e.g., switches) within energy storage component 13, the alternator 15, and/or the electric motor 17. For example, the control module 24 may regulate amount of electrical energy captured/supplied by each battery module 20 or 22 (e.g., to de-rate and re-rate the battery system 12), perform load balancing between the battery modules 20 and 22, determine a state of charge of each battery module 20 or 22, determine temperature of each battery module 20 or 22, control voltage output by the alternator 15 and/or the electric motor 17, and the like.
  • the control module 24 may control operations of components in the battery system 12, such as relays (e.g., switches) within energy storage component 13, the alternator 15, and/or the electric motor 17.
  • the control module 24 may regulate amount of electrical energy captured/supplied by each battery module 20 or 22 (e.g., to de-rate and re-rate the battery system 12), perform load balancing between the battery modules 20 and 22,
  • control unit 24 may include one or more processor 26 and one or more memory 28. More specifically, the one or more processor 26 may include one or more application specific integrated circuits (ASICs), one or more field programmable gate arrays (FPGAs), one or more general purpose processors, or any combination thereof. Additionally, the one or more memory 28 may include volatile memory, such as random access memory (RAM), and/or non-volatile memory, such as read-only memory (ROM), optical drives, hard disc drives, or solid-state drives, In some embodiments, the control unit 24 may include portions of a vehicle control unit (VCU) and/or a separate battery control module.
  • VCU vehicle control unit
  • the battery module 20 includes a housing 30 configured to receive electrochemical cells 32 (e.g., prismatic lithium-ion [Li-ion] electrochemical cells) of the battery module 20.
  • electrochemical cells 32 e.g., prismatic lithium-ion [Li-ion] electrochemical cells
  • the electrochemical cells 32 may be stored in a row 40 or in multiple rows within a base 33 (e.g., main body) of the housing 30.
  • a cover 34 of the housing 30 may be disposed over the electrochemical cells 32 and may be sealed (e.g., heat sealed or welded) against a lip 35 or some other surface of the base 33 of the housing 30.
  • the housing 30 may be made partially or entirely of plastic.
  • the housing 30 may include a polymer-based plastic (e.g., polypropylene, polyethylene, high-density polyethylene, low-density polyethylene, etc.).
  • the housing 30 may also include glass content to provide additional structural rigidity to the housing 30.
  • a heating element may be disposed between the cover 34 and the base 33 during manufacturing of the battery module 20 such that the cover 34, the base 33, or both are heated until the plastic proximate to the heating element melts slightly.
  • the housing 30 may include a metal layer or film in portions of the housing 30.
  • the cover 34 may include a metal film in a central area of the cover 34 that reinforces the cover 34 and/or enables better performance of a vent that may, in some embodiments, be disposed in the cover 34.
  • the housing 30 is made entirely or mostly of plastic (e.g., with some glass content)
  • the housing 30 may not be as resilient to forces exerted against the housing 30 as, for example, a housing made mostly or entirely of metal would be.
  • the battery module 20 may include features configured to accommodate thermal expansion of the electrochemical cells 32 (e.g., during operation of the battery module 20) such that the electrochemical cells 32 do not exert substantial forces against the housing 30, which may otherwise cause the housing 30 to deform slightly and/or cause the cover 34 of the housing 30 to pull away from the base 33 of the housing 30 along the heat sealed region between the cover 34 and the base 33, as previously described.
  • the battery module 20 may include separator plates 42 (or other expansion accommodating features or elements) configured to accommodate swelling of the electrochemical cells 32 during operation of the battery module 20.
  • the row 40 of electrochemical cells 32 also includes the separator plates 42.
  • the row 40 may include an alternating arrangement of electrochemical cells 32 and separator plates 42.
  • each separator plate 42 may include one electrochemical cell 32 on either side of the separator plate 42
  • each electrochemical cells 32 may include one separator plate 42 on either side of the electrochemical cell 32.
  • the separator plates 42 may separate adjacent electrochemical cells 32 slightly, and may include cavities or windows configured to receive expanding portions of the electrochemical cells 32.
  • the electrochemical cells 32 are permitted to swell into the cavities or windows of the separator plates 42, such that a footprint 50 of the row 40 of electrochemical cells 32 and separator plates 42 remains substantially constant during operation of the battery module 20 (e.g., less than 105% of the footprint 50 prior to operation, less than 103% of the footprint 50 prior to operation, or less than 101% of the footprint 50 prior to operation).
  • the separator plates 42 may be made entirely or partially of plastic or some other inexpensive material. Further, the separator plates 42 may serve to electrically isolate certain portions of adjacent electrochemical cells 32, in addition to accommodating swelling (e.g., thermal expansion) of the electrochemical cells 32.
  • the battery module 20 may also include retaining walls 43 disposed at either end 59 of the row 40 of electrochemical cells 32 and separator plates 42.
  • retaining walls 43 e.g., removable retaining walls
  • the retaining walls 43 may be generally rectangular prisms (e.g., blocks, plates) formed of any suitable material or combination of materials, such as polymers having different degrees of hardness and/or strength, relatively compressible materials such as silicone, breakable and rigid materials such as glass, or composite materials such as glass-filed polypropylene.
  • the retaining walls 43 may include a truss-like structure (e.g., with rectangular truss structures).
  • the retaining walls 43 provide structural rigidity to the battery module 20 by absorbing forces exerted against the retaining walls 43 via expansion of the electrochemical cells 32.
  • the retaining walls 43 may be used to compress the row 40 of electrochemical cells 32 and separator plates 42 after the row 40 is inserted into the housing 30, or the row 40 and/or the retaining walls 43 may be compressed together prior to insertion into the housing 30.
  • the base 33 of the housing 30 may include glass content and the retaining walls 43 may or may not be included.
  • FIG. 4 An exploded overhead perspective view of an embodiment of the housing 30 is shown in FIG. 4 .
  • the housing 30 includes the cover 34 and the base 33, as previously described.
  • the cover 34 is configured to be heat sealed (e.g., welded) to the base 33 along, for example, the lip 35 of the base 33.
  • the cover 34 may be heat sealed to the lip 35 of the base 33 along a sealing path 60 on a bottom surface 62 of the cover 34 opposite to a top surface 64 of the cover 34.
  • the sealing path 60 may be disposed inward on the cover 34 from a perimeter 63 of the cover 34.
  • the perimeter 63 of the cover 34 may include a skirt (e.g., downward lip) extending downwardly (e.g., opposite to direction 66) from the bottom surface 62 of the cover 34.
  • the skirt of the cover 34 may overlap with the lip 35 of the base 33 along direction 66 (e.g., along a height of the battery module 20), and a top surface 68 of the lip 35 of the base 33 may be heat sealed to the sealing path 60 extending along the bottom surface 62 of the cover 34.
  • FIG. 5 a schematic cross-sectional side view of an assembled embodiment of the housing 30 of FIG. 4 , taken along lines 5-5 in FIG. 4 , is shown in FIG. 5 .
  • the lip 35 of the base 33 of the housing 30 extends upwardly (e.g., in direction 66) toward the cover 34.
  • a skirt 80 of the cover 34 extends downwardly (e.g., opposite to direction 66) toward the base 33.
  • the skirt 80 of the cover 34 is disposed outside of the lip 35 of the base 33 (e.g., along direction 81).
  • the lip 35 of the base 33 and the skirt 80 of the cover 34 are disposed in a nested arrangement, with the lip 35 nested inwards from the skirt 80.
  • the skirt 80 of the cover 34 encircles the lip 35 of the base 33, and the top surface 68 of the lip 35 of the base 33 is heat sealed to the bottom surface 62 of the cover 34 along the sealing path 60 of the cover 34.
  • the sealing path 60 of the cover 34, the lip 35 of the base 33, or both may be heated prior to pressing the cover 34 and the base 33 together, causing melted material of the cover 34 and/or base 33 to fuse together as the melted material cools.
  • the material may be melted to such an extent that the cover 34 and the base 33 are pressed together only by the weight of the cover 34 on the lip 35 (e.g., without additional force), or only by the weight of the base 33 onto the cover 34 (e.g., without additional force), depending on the orientation of the housing 30 to seal the cover 34 to the base 33.
  • some of the material may move from its original position (e.g., original position prior to heat sealing of the cover 34 and the base 33). This may cause the material to form ridges, bumps, or other aesthetically displeasing features on a peripheral surface 82 of the lip 35 of the base 33.
  • the aesthetically displeasing features e.g., the material
  • the skirt 80 of the cover 34 may be partially or entirely hidden from view, causing the housing 30 to appear more aesthetically pleasing for potential customers.
  • a clearance e.g., space, radial space, radial clearance
  • the skirt 80 of the cover 34 and the peripheral surface 82 of the lip 35 of the base 33 e.g., a clearance having a width along direction 81
  • the aesthetically displeasing features e.g., melted portions of the housing 30
  • FIG. 6 an embodiment of the housing 30 (e.g., the cover 34 and the base 33) is shown with a heating element 90 disposed between the cover 34 and the base 33.
  • the cover 34 and the base 33 of the housing 30 may be disposed in close proximity to one another, with the heating element 90 disposed between the cover 34 and the base 33.
  • the heating element 90 permeates heat upwardly (e.g., in direction 66) toward the cover 34 to at least partially melt the plastic along the sealing path 60 on the bottom surface 62 of the cover 34, downwardly (e.g., opposite to direction 66) toward the base 33 to at least partially melt the plastic along the top surface 68 of the lip 35 of the base 33, or both, the heating element 90 is removed from between the cover 34 and the base 33.
  • the cover 34 is then pressed into the top surface 68 of the lip 35 of the base 33 along the sealing path 60 of the cover 34 such that the melted plastic cools and fuses together, thereby coupling the cover 34 to the base 33.
  • the pressing of the cover 34 onto the lip 35 of the base 33 may include only the weight of the cover 34 (e.g., without any additional force).
  • FIG. 7 A top view of an embodiment of the heating element 90 is shown in FIG. 7 .
  • the heating element 90 may include a similar shape as that of the sealing path 60 on the cover 34, the upper surface 68 of the lip 35 of the base 33, or both.
  • the heating element 90 may encircle an empty space 92, thereby enabling the heating element 90 to provide heat to the cover 34 and/or to the base 33 without heating the electrochemical cells 32 (e.g., shown in FIG. 3 ) that are positioned proximate to the empty space 92 during the manufacturing process.
  • the electrochemical cells 32 may thermally expand due at least in part to the internal chemistry of the electrochemical cells 32.
  • the battery module 20 may include expansion accommodating elements configured to enable thermal expansion of the electrochemical cells 32 and block the electrochemical cells 32 from exerting forces against the housing 30.
  • expansion accommodating elements configured to enable thermal expansion of the electrochemical cells 32 and block the electrochemical cells 32 from exerting forces against the housing 30.
  • FIG. 8 a top view of an embodiment of the row 40 (or a portion of the row 40) of electrochemical cells 32, separator plates 100, and certain other components of the battery module 20 is shown in FIG. 8 .
  • the row 40 includes an alternating arrangement of separator plates 100 and electrochemical cells 32.
  • each electrochemical cell 32 may include a separator plate 100 on either side of the electrochemical cell 32.
  • the electrochemical cell 32 proximate to the end 59 of the row 40 may not include a separator plate 100 proximate to end 59.
  • the electrochemical cells 32 at the ends 59 of the row 40 may still include a separator plate 100 on either side of the electrochemical cell 32.
  • a retaining wall e.g., the retaining wall 43 in FIG. 3
  • the separator plates 100 may serve to electrically isolate certain components of adjacent electrochemical cells 32, in addition to enabling thermal expansion of the electrochemical cells 32 into features of the separator plates 100.
  • the footprint 50 of the row 40 remains substantially constant during operation of the battery module 20.
  • the separator plates 100 block the electrochemical cells 32 from expanding into the housing 30 (e.g., in FIGS. 3-6 ) of the battery module 20.
  • the housing 30 e.g., which is made partially or entirely of plastic
  • the housing 30 may deform and/or components of the housing 30 (e.g., the cover 34 and the base 33) may pull away from one another, as previously described.
  • FIG. 9 A perspective view of an embodiment of one of the separator plates 100 of FIG. 8 is shown in FIG. 9 .
  • the separator plate 100 includes a first side 110 and a second side 112 opposite to the first side 110, wherein the first and second sides 110, 112 are separated by a thickness of the separator plate 100.
  • a recess 114 e.g., cavity, window, indention
  • the recess 114 on the first side 110 of the separator plate 100 may be sized and configured to receive swelling of an electrochemical cell (e.g., one of the electrochemical cells 32 in FIG. 8 ) disposed adjacent to the first side 110 of the separator plate 100.
  • an electrochemical cell e.g., one of the electrochemical cells 32 in FIG. 8
  • a similar or substantially same recess may also be disposed on the second side 112 of the separator plate 100 such that an electrochemical cell (e.g., one of the electrochemical cells 32 in FIG. 8 ) disposed adjacent to the second side 112 is permitted to swell into the similar or substantially same recess on the second side 112.
  • an electrochemical cell e.g., one of the electrochemical cells 32 in FIG. 8
  • FIG. 10 A process flow diagram of an embodiment of a method 130 of manufacturing the battery module 20 of FIG. 3 is shown in FIG. 10 .
  • the method 130 includes disposing the electrochemical cells 32 into the base 33 of the housing 30 of the battery module 20 (block 132).
  • the electrochemical cells 32 may be disposed into the row 40 having the footprint 50, as previously described.
  • the method 130 also includes disposing the separator plates 100 into the base 33 such that the separator plates 100 and the electrochemical cells 32 are disposed in the row 40 in an alternating order, as previously described (block 134).
  • the separator plates 100 are configured to enable thermal expansion of the electrochemical cells 32 (e.g., during operation of the battery module 20) such that the footprint 50 of the row 40 remains constant.
  • the method 130 also includes disposing the cover 34 of the housing 30 over the base 33 of the housing 30 (block 136). Further, the method 130 includes heat sealing the cover 34 to the base 33 (block 138).
  • the method 130 may include forming the cover 34 such that the cover 34 includes the skirt 80, as previously described, where the skirt 80 extends downwardly toward the base 33.
  • the base 33 may be formed such that the base 33 includes the lip 35 extending upwardly from the base 33 and toward the cover 34.
  • the cover 34 may be heat sealed to the lip 35 of the base 33 such that the skirt 80 is disposed outwardly from the lip 35 along a height of the battery module 20.
  • the method 130 may include blocking heating of the electrochemical cells 32 during the heat sealing process between the cover 34 and the base 33.
  • the heating element 90 may only heat along the lip 35 of the base 33 and the sealing path 60 of the cover 34.
  • the heating element 90 may be shaped such that the heating element 90 surrounds the area proximate to which the electrochemical cells 32 are disposed.
  • the heating element 90 heats only the cover 34, the base 33, or both, without substantially heating the electrochemical cells 32 (e.g., by directing heat particularly toward the cover 34 and the base 33 and not the electrochemical cells 32).
  • a lithium-ion (Li-ion) battery module may include a housing made entirely or mostly of plastic, which is cheaper than metal.
  • a cover of the housing may be heat sealed to a base of the housing, which may be cheaper and/or more robust than other coupling techniques and mechanisms (e.g., such as fasteners or adhesive),
  • separator plates may be included in the battery module to accommodate swelling of the Li-ion electrochemical cells disposed in the housing such that the Li-ion electrochemical cells do not exert a substantial force against the housing, which may otherwise negatively affect the structural integrity of the housing and its components.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Claims (15)

  1. Module de batterie (20), comprenant :
    - une pluralité de cellules électrochimiques au lithium-ion (Li-ion) (32) disposées dans une rangée (40) ;
    - une pluralité d'éléments encaissant la dilatation, chaque élément recevant la dilatation étant configuré pour encaisser le gonflement d'une ou plusieurs cellules électrochimiques Li-ion (32) de telle sorte qu'une empreinte (50) de la rangée (40) de la pluralité de cellules électrochimiques Li-ion (32) est sensiblement constante pendant le fonctionnement du module de batterie (20) ; et
    - un boîtier en plastique (30) ayant un corps principal (33) configuré pour recevoir la pluralité de cellules électrochimiques Li-ion (32), et un couvercle (34) thermoscellé à une surface (68) du corps principal (33) ;
    dans lequel le couvercle (34) du boîtier en plastique (30) comprend une jupe (80) s'étendant vers le bas vers le corps principal (33) du boîtier en plastique (30) et autour d'un premier périmètre (63) du couvercle (34), dans lequel le corps principal (33) du boîtier en plastique (30) comprend une lèvre (35) s'étendant vers le haut vers le couvercle (34) et autour d'un deuxième périmètre du corps principal (33), et dans lequel la lèvre (35) du corps principal (33) est thermoscellée à une surface interne du couvercle (34) disposée vers l'intérieur par rapport à la jupe (80) du couvercle (34) de telle sorte que la jupe (80) du couvercle (34) et la lèvre (35) du corps principal (33) se chevauchent le long d'une hauteur du module de batterie (20).
  2. Module de batterie (20) de la revendication 1,
    dans lequel la pluralité d'éléments encaissant la dilatation comprend une pluralité de plaques de séparation (42, 100), et dans lequel chaque plaque de séparation (42, 100) de la pluralité de plaques de séparation (42, 100) est disposée entre une première et une deuxième cellule électrochimique Li-ion (32) correspondantes de la pluralité de cellules électrochimiques Li-ion (32).
  3. Module de batterie (20) de la revendication 2,
    dans lequel chaque plaque de séparation (100) comprend un premier côté (110) faisant face à la première cellule électrochimique Li-ion (32) et un deuxième côté (112) faisant face à la deuxième cellule électrochimique Li-ion (32), le premier côté (110) de la plaque de séparation (100) comprenant une première encoche (114) configurée pour encaisser le gonflement de la première cellule électrochimique Li-ion (32) à l'intérieur de la première encoche (114), et le deuxième côté (112) de la plaque de séparation (100) comprenant une deuxième encoche (114) configurée pour encaisser le gonflement de la deuxième cellule électrochimique Li-ion (32) à l'intérieur de la deuxième encoche (114).
  4. Module de batterie (20) d'une des revendications 1 à 3,
    dans lequel la jupe (80) est positionnée par rapport à la lèvre (35) de telle sorte qu'un espace radial est disposé entre la jupe (80) et une surface périphérique (82) de la lèvre (35).
  5. Module de batterie (20) d'une des revendications 1 à 4,
    dans lequel la pluralité de cellules électrochimiques Li-ion (32) comprend une pluralité de cellules électrochimiques Li-ion prismatiques (32).
  6. Module de batterie (20) d'une des revendications 1 à 5,
    dans lequel le couvercle (34) ne comprend pas de métal.
  7. Module de batterie (20) d'une des revendications 1 à 6,
    dans lequel le corps principal (33) ne comprend pas de métal.
  8. Module de batterie (20) d'une des revendications 1 à 7,
    dans lequel le couvercle (34), le corps principal (33), ou les deux comprennent uniquement du plastique.
  9. Module de batterie (20) d'une des revendications 1 à 7,
    dans lequel le couvercle (34), le corps principal (33), ou les deux comprennent du plastique avec une teneur en verre.
  10. Module de batterie (20) d'une des revendications 1 à 5,
    dans lequel le boîtier (30) comprend une couche ou un film, métallique.
  11. Module de batterie (20) de la revendication 10,
    dans lequel la couche ou le film métallique est disposé dans le couvercle (34) du boîtier (30).
  12. Procédé (130) de fabrication d'un module de batterie (20) d'une des revendications 1 à 11, comprenant :
    - la mise en place d'une pluralité de cellules électrochimiques au lithium-ion (Li-ion) (32) dans un fond (33) d'un boîtier (30) du module de batterie (20) ;
    - la mise en place d'une pluralité de plaques de séparation (42, 100) dans le fond (33) de telle sorte que la pluralité de plaques de séparation (42, 100) et la pluralité de cellules électrochimiques Li-ion (32) soient disposées dans une rangée (40) ayant un agencement alterné de cellules électrochimiques Li-ion (32) et de plaques de séparation (42, 100), les plaques de séparation (42, 100) étant configurées pour permettre une dilatation thermique des cellules électrochimiques Li-ion (32) pendant le fonctionnement du module de batterie (20) tout en maintenant une empreinte constante (50) de la rangée (40) ;
    - la mise en place d'un couvercle (34) du boîtier (30) sur le fond (33) du boîtier (30) ;
    - la formation du couvercle (34) de telle sorte que le couvercle (34) comprenne une jupe (80) s'étendant le long d'un périmètre (63) du couvercle (34) et vers le bas depuis le couvercle (34) vers le fond (33) ; et
    - la formation du fond (33) de telle sorte que le fond (33) comprenne une lèvre (35) s'étendant vers le haut depuis le fond (33) vers le couvercle (34) ;
    - le thermoscellage du couvercle (34) au fond (33) avec les cellules électrochimiques Li-ion (32) dans le fond (33) ;
    dans lequel le thermoscellage du couvercle (34) au fond (33) comprend le thermoscellage de la lèvre (35) du fond (33) à une surface inférieure (62) du couvercle (34) disposée vers l'intérieur par rapport à la jupe (80) du couvercle (34) de telle sorte que la jupe (80) du couvercle (34) et la lèvre (35) du fond (33) se chevauchent le long d'une hauteur du module de batterie (20) .
  13. Procédé (130) de la revendication 12,
    comprenant la formation de chaque plaque de séparation (42, 100) de telle sorte que chaque plaque de séparation (42, 100) comprenne au moins une cavité disposée à proximité d'une cellule adjacente parmi les cellules électrochimiques Li-ion (32), de telle sorte que la cellule adjacente parmi les cellules électrochimiques Li-ion (32) peut se dilater à l'intérieur de la cavité pendant le fonctionnement du module de batterie (20) sans changer sensiblement l'empreinte (50) de la rangée (40).
  14. Procédé (130) de la revendication 12 ou 13,
    dans lequel le thermoscellage du couvercle (34) au fond (33) comprend le chauffage d'une partie du couvercle (34), d'une partie du fond (33), ou des deux avec un élément chauffant (90).
  15. Procédé (130) de la revendication 14,
    comprenant l'action d'empêcher l'élément chauffant (90) de chauffer sensiblement la pluralité de cellules électrochimiques Li-ion (32),
    dans lequel l'action d'empêcher l'élément chauffant (90) de chauffer sensiblement la pluralité de cellules électrochimiques Li-ion (32) comprend de préférence l'utilisation d'un élément chauffant (90) qui focalise la chaleur uniquement le long d'un périmètre de l'élément chauffant (90) et la forme du périmètre de l'élément chauffant (90) correspond sensiblement à celle de la lèvre (35) du fond (33) du boîtier (30) à laquelle le couvercle (34) est thermoscellé.
EP16709619.7A 2015-05-18 2016-02-12 Module de batterie au lithium-ion comprenant des éléments de réception de dilatation et procédé de fabrication comprenant un thermoscellage de couvercle à base de boîtier Active EP3298641B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/715,357 US20160344059A1 (en) 2015-05-18 2015-05-18 System and method for lithium-ion battery module assembly via heat seal of cover to base of housing
PCT/US2016/017653 WO2016186707A1 (fr) 2015-05-18 2016-02-12 Module de batterie au lithium-ion comprenant des éléments de réception de dilatation et procédé de fabrication comprenant un thermoscellage de couvercle à base de boîtier

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EP3298641A1 EP3298641A1 (fr) 2018-03-28
EP3298641B1 true EP3298641B1 (fr) 2020-09-16

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050238955A1 (en) * 2004-04-26 2005-10-27 Hooke John W Battery and battery terminal structure and method of manufacture

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4830302B2 (ja) * 2005-01-25 2011-12-07 トヨタ自動車株式会社 二次電池
JP2011523168A (ja) * 2008-05-10 2011-08-04 エナーデル、インク 電池組立品
US20110177366A1 (en) * 2008-11-21 2011-07-21 Panasonic Corporation Battery pack
CN102024916A (zh) * 2010-06-30 2011-04-20 南京双登科技发展研究院有限公司 阀控铅酸蓄电池壳体热封结构
KR101201740B1 (ko) * 2010-11-12 2012-11-15 에스비리모티브 주식회사 전지 모듈
US8906532B2 (en) * 2011-06-03 2014-12-09 Johnson Controls Technology Llc Electrochemical cells with improved heat collection and transfer systems
DE102011088636A1 (de) * 2011-12-15 2013-06-20 Robert Bosch Gmbh Hartschalengehäuse mit superhydrophoben Material
CN202405342U (zh) * 2011-12-27 2012-08-29 青岛海霸能源集团有限公司 新型电池盒
JP2013232364A (ja) * 2012-05-01 2013-11-14 Nissan Motor Co Ltd 電池装置
US9048483B2 (en) * 2012-07-16 2015-06-02 Sanyo Electric Co., Ltd. Power supply device, power-supply-device separator, and power supply-device-equipped vehicle and electric power storage
WO2014021891A1 (fr) * 2012-08-02 2014-02-06 Onepoint Solutions, Llc Batterie
US10062934B2 (en) * 2013-07-25 2018-08-28 Johnson Controls Technology Company Cooling system and method for lithium-ion battery module
JP5846166B2 (ja) * 2013-07-29 2016-01-20 株式会社デンソー 電池パック
US10020534B2 (en) * 2014-09-26 2018-07-10 Johnson Controls Technology Company Free floating battery cell assembly techniques for lithium ion battery module

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050238955A1 (en) * 2004-04-26 2005-10-27 Hooke John W Battery and battery terminal structure and method of manufacture

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EP3298641A1 (fr) 2018-03-28
CN107912071B (zh) 2021-07-13
WO2016186707A1 (fr) 2016-11-24
CN107912071A (zh) 2018-04-13
US20160344059A1 (en) 2016-11-24

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